Day to Day with Linux


Deleted member 58530


This is something I do on a daily bases.

All work which requires using on a regular bases or on a daily bases when finished at the end of my day I will save all daily work to 2 different usb flash drives takes but a minute or two.

The reason I save to two usb flash drives in case one of the two usb flash drives becomes corrupt I will have the other as a backup.

To prevent possible corruption make certain to unmount / eject the usb flash drive and then wait a minute before removing the usb flash drive as sometimes files may still be being written to the usb flash drive.


New Member
I installed Debian 10.8.0 yesterday (graphical install) with a bootable USB stick. Now i am not able to do any updates or install additional software since it is asking for a Debian CD/DVD disk in the CD/DVD drive. I came across the following tutorial...
but got an error that the release file is not signed when i did an apt-get update. I downloaded another copy with the same result.

[email protected]:~$ sudo apt-get update
[sudo] password for sid:
Get:1 file:/mnt/debcd buster InRelease
Ign:1 file:/mnt/debcd buster InRelease
Get:2 file:/mnt/debcd buster Release [19.1 kB]
Get:2 file:/mnt/debcd buster Release [19.1 kB]
Get:3 file:/mnt/debcd buster Release.gpg
Ign:3 file:/mnt/debcd buster Release.gpg
Hit:4 buster InRelease
Get:5 buster/updates InRelease [65.4 kB]
Get:6 buster-updates InRelease [51.9 kB]
Reading package lists... Done
E: The repository 'file:/mnt/debcd buster Release' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Am i missing something???
Last edited:


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G'day @shastrycs and welcome to :)

You are in a Tutorial, not a Support area.

Go to Getting Started and ask your questions there.


Chris Turner
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